foam valve 中文意思是什麼
foam valve
解釋
泡沫閥-
4. analyzing the seal structure of butterfly valve the evolution process of butterfly valve ' s seal structure is analyzed in detail by using the theory of technology evolution. two improved design blueprints are advanced : magnetic field seal butterfly valve and foam plastic butterfly valve, which obtain the ratification of the factory of shijiazhuang valve
蝶閥密封結構分析應用技術進化理論對蝶閥密封結構的進化進行了分析,並提出了兩種改進設計方案:磁場作用密封蝶閥和泡沫材料蝶板的蝶閥,為蝶閥的密封結構提出了新的工作原理,得到了石家莊閥門一廠的認可。
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